package com.qk.mapper;

import com.qk.entity.Course;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;

import java.util.List;

@Mapper
public interface CourseMapper {


    List<Course> selectList(String name, Integer subject, Integer target);


    @Delete("delete from course where id = #{id}")
    void deleteById(Integer id);

    @Insert("insert into course(name,subject,price,target,description,create_time,update_time) " +
            "values(#{name},#{subject},#{price},#{target},#{description},#{createTime},#{updateTime})")
    void insert(Course course);


    @Select("select id,name,subject,price,target,description,create_time,update_time from course where id = #{id}")
    Course selectById(Integer id);

    void update(Course course);
    //根据学科查询课程
    @Select("select id,name,subject,price,target,description,create_time,update_time from course where subject = #{subject}")
    List<Course> selectBySubject(Integer subject);

    //查询所有课程
    @Select("select id,name,subject,price,target,description,create_time,update_time from course")
    List<Course> selectAllList();
}
